Which of these is a weak acid? select one:
a. sulfuric acid
b. acetic acid
c. hydrochloric acid
d. nitric acid?

Sulfuric, hydrochloric, and nitric are all Strong acids.

B, acetic acid is the Weak acid out of these choices.

Usually strong acids dissociates (separate/fall apart) in a solution.

Whereas weak acids tend to recombine in a acid or in a sense heal/mend back together.

That's how you can tell each apart.

I hope this helps!! 

i believe the answer is c. "baking" is the gerund, while "baking blueberry muffins" would be the gerund phrase. hope this ! : )